| Rotator cuff tears: should abduction and external rotation (ABER) positioning be performed before image acquisition? A CT arthrography study. | |
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MedLine Citation:
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PMID: 19890647 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: To evaluate the impact of abduction and external rotation (ABER) positioning performed before image acquisition on the assessment of rotator cuff tears. METHODS: Twenty-seven consecutive patients with clinically suspected rotator cuff tears underwent an initial CT arthrogram of the shoulder in neutral position, immediately followed by temporary ABER positioning, before a second CT acquisition in neutral position. Two observers blinded to potential pre-procedure ABER positioning independently analysed the randomly distributed images. Lesions were classified into partial-thickness (PT) and full-thickness (FT) tear subtypes. Lesion detection and measurements of pre- and post-ABER studies were compared. RESULTS: We found no influence of pre-test ABER positioning on FT detection or measurements. Every PT detected on pre-ABER study was also detected on post-ABER study (28/28 for reader 1, and 32/32 for reader 2). Seven and eight additional PT were found by readers 1 and 2, respectively, on post-ABER study. Lesion size increased after ABER in terms of area (P < 0.001 for both readers) and Ellman's grade (P = 0.02 and 0.002 for reader 1 and 2, respectively). CONCLUSION: ABER positioning before CT is associated with improved delineation of partial tears, a higher number of detected tears and modification of treatment planning. |
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Authors:
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Hubert Cochet; Stephane Couderc; Eric Pelé; Nicolas Amoretti; Marie-Hélène Moreau-Durieux; Olivier Hauger |
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Publication Detail:
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Type: Journal Article Date: 2009-11-05 |
Journal Detail:
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Title: European radiology Volume: 20 ISSN: 1432-1084 ISO Abbreviation: Eur Radiol Publication Date: 2010 May |
Date Detail:
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Created Date: 2010-04-07 Completed Date: 2010-07-15 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9114774 Medline TA: Eur Radiol Country: Germany |
Other Details:
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Languages: eng Pagination: 1234-41 Citation Subset: IM |
Affiliation:
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Unité d'imagerie thoracique et cardiovasculaire, Hopital cardiologique du Haut-Lévêque, CHU Bordeaux, Pessac, France. hcochet@wanadoo.fr |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Contrast Media Female Humans Ioxaglic Acid / diagnostic use Male Middle Aged Patient Positioning* Prospective Studies Radiographic Image Interpretation, Computer-Assisted Reproducibility of Results Rotation Rotator Cuff / injuries*, radiography* Statistics, Nonparametric Tomography, X-Ray Computed / methods* |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media; 59017-64-0/Ioxaglic Acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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